Added a GPIO to power on/off for external I2C sensor(s) (with LEDs)

Dependencies:   UniGraphic mbed vt100

18-Jun-2018 外部センサの電源オン・オフ機能は下位互換の為に無効になっていました。 この版で再度有効にしました。

Revision:
0:846e2321c637
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/edge_utils/edge_chart.cpp	Fri Apr 13 04:19:23 2018 +0000
@@ -0,0 +1,56 @@
+#include "mbed.h"
+#include "edge_mgr.h"
+#include "edge_reset_mgr.h"
+#include "edge_chart.h"
+#if 0
+typedef struct _edge_chart_st {
+    char *name ;
+    int left ;
+    int top ;
+    int width ;
+    int height ;
+    int index ;
+    int min ;
+    int max ;
+} edge_chart_type ;
+
+extern edge_chart_type edge_chart[] ;
+#endif
+
+edge_chart_type edge_chart[] = {
+/*      name,  left, top, width, height, index,   min,     max */
+    { "Accel",    0,   0,   160,     60,     0,  -0.2,     0.2 },
+    { "Color",  160,   0,   160,    120,     0,   0.0, 10000.0 },
+    { "Color2", 160, 120,   160,    120,     0,   0.0, 10000.0 },
+    { "Temp",     0, 120,   160,    120,     0, -10.0,    50.0 },
+    { "Press",    0,  60,   160,     60,     0,  -1.0,     5.0 },
+    {        0,   0,   0,     0,      0,     0,   0.0,     0.0 }
+} ;
+
+void draw_chart_frame(edge_chart_type *p)
+{
+    if (display) {
+        display->fillrect(p->left+1, p->top+1,
+        p->left + p->width - 2, p->top + p->height - 2, Black) ;
+        display->rect(p->left, p->top, 
+            p->left + p->width - 1,
+            p->top + p->height -1, Blue) ;
+        display->set_font((unsigned char*) Arial12x12);
+        display->foreground(White) ;
+        display->locate(p->left + 5, p->top + 5) ;
+        display->printf(p->name) ;
+    }
+}
+
+void   draw_all_chart_frame(void) 
+{
+    edge_chart_type *p ;
+    if (display) {
+        reset_watch_dog() ;
+        display->BusEnable(true) ;
+        for(p = edge_chart ; p->name ; p++ ) {
+            draw_chart_frame(p) ;
+        }
+        display->BusEnable(false) ;
+    }
+}
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